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[AMPS] Chokes

To: <amps@contesting.com>
Subject: [AMPS] Chokes
From: Carl Clawson" <ws7l@arrl.net (Carl Clawson)
Date: Sat, 11 Mar 2000 16:24:14 -0800
> (W8JI on the choke across Load-C)
> A 100 microhenry choke is enough for 160 meters in a 50 ohm line.
>

Very good point, Tom. This requires a minuscule change in the load-C setting
compared to a larger inductance. I hadn't thought much about this component
before -- "everybody knows" you use a couple mH here. Why do all the amp
designs in my handbooks (ARRL & Orr) call for 1 mH or more?

Why don't we see problems with series resonances in this part when >1 mH is
used?

Carl WS7L





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